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Content transmission system, device and method

A transmission system and transmission device technology, applied to content transmission systems, devices and fields, can solve problems such as insufficient consideration

Active Publication Date: 2010-01-13
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the same device, the original data is deleted after the data is recorded in the destination, or the original data is deleted in parallel with the recording of the data in the destination. The state of disconnection in the Sink is not fully considered

Method used

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  • Content transmission system, device and method
  • Content transmission system, device and method
  • Content transmission system, device and method

Examples

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Embodiment Construction

[0134] The present invention relates to a content transmission system, which encrypts and transmits information content that needs to be protected for copyright or other purposes according to designated copy control information. A specific example of such a system is content transmission using the HTTP protocol between DTCP-IP devices. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0135] A. System structure

[0136] DTCP-IP-compliant content transmission consists of a Source that sends content and a Sink that receives content and plays or records it. As the content transmission method, you can consider download transmission and upload transmission. Download transmission is that the Source running as a server sends content according to the request from the sink running as the client; the upload transmission is based on the request from the sink running as the client. Sink running as a server sends content.

[0137] ...

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Abstract

A content transmission system, device and method can prevent the content breaking or lose to reliably execute Move even that a malfunction occurs at the transmission path in transmission. Sink records the content on Move on the recording medium, but the recording content is in an unusable condition before the successful ending procession of Move, when the procession is confirmed to be finished and the recording content at the Sink end is executed with effectiveness and is arranged to an usable condition, the normal content is deleted or be arranged to be unusable treatment at the Source end. Even the malfunction occurs in the transmission path the Move treatment of the content can be executed when the condition satisfying DTCP regulation is satisfied.

Description

Technical field [0001] The present invention relates to a content transmission system, a content transmission device, a content transmission method, and a computer program for transmitting digitized AV data and other content between devices, and more particularly to a method for restricting copying between devices for the purpose of protecting copyright and other purposes A content transmission system, a content transmission device, a content transmission method, and a computer program for encrypted transmission of the content. [0002] In further detail, the present invention relates to a content transmission system, a content transmission device, a content transmission method, and a computer program that perform encrypted content transmission procedures between DTCP-compliant information devices, and more particularly to a method that uses the DTCP MOVE function from Source A content transmission system, content transmission device, content transmission method, and computer prog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/16H04N7/167H04L9/30
Inventor 中野雄彦岛久登
Owner SONY CORP